﻿using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using System;

namespace MvcCoreSample
{
    public class AppSettings
    {
        public string MapAgentUrl { get; set; }

        public string ViewerRoot { get; set; }
    }

    /// <summary>
    /// <see cref="IUrlHelper"/> extension methods.
    /// </summary>
    public static class UrlHelperExtensions
    {
        /// <summary>
        /// Generates a fully qualified URL to an action method by using the specified action name, controller name and
        /// route values.
        /// </summary>
        /// <param name="url">The URL helper.</param>
        /// <param name="actionName">The name of the action method.</param>
        /// <param name="controllerName">The name of the controller.</param>
        /// <param name="routeValues">The route values.</param>
        /// <returns>The absolute URL.</returns>
        public static string AbsoluteAction(
            this IUrlHelper url,
            string actionName,
            string controllerName,
            object routeValues = null)
        {
            return url.Action(actionName, controllerName, routeValues, url.ActionContext.HttpContext.Request.Scheme);
        }

        /// <summary>
        /// Generates a fully qualified URL to the specified content by using the specified content path. Converts a
        /// virtual (relative) path to an application absolute path.
        /// </summary>
        /// <param name="url">The URL helper.</param>
        /// <param name="contentPath">The content path.</param>
        /// <returns>The absolute URL.</returns>
        public static string AbsoluteContent(
            this IUrlHelper url,
            string contentPath)
        {
            HttpRequest request = url.ActionContext.HttpContext.Request;
            return new Uri(new Uri(request.Scheme + "://" + request.Host.Value), url.Content(contentPath)).ToString();
        }

        /// <summary>
        /// Generates a fully qualified URL to the specified route by using the route name and route values.
        /// </summary>
        /// <param name="url">The URL helper.</param>
        /// <param name="routeName">Name of the route.</param>
        /// <param name="routeValues">The route values.</param>
        /// <returns>The absolute URL.</returns>
        public static string AbsoluteRouteUrl(
            this IUrlHelper url,
            string routeName,
            object routeValues = null)
        {
            return url.RouteUrl(routeName, routeValues, url.ActionContext.HttpContext.Request.Scheme);
        }
    }

    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            // Set up configuration sources.
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);

            Configuration = builder.Build();
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddOptions();
            services.Configure<AppSettings>(Configuration);
            services.AddMvc();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseBrowserLink();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
            }

            app.UseStaticFiles();

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            });
        }
    }
}
